In an office, the number of male workers is 3 times greater than female workers. if there are 60 female workers, how many male workers are in the offices? use a tape diagram to solve each problem.

Solve the system of equations. y= 2x y= x^2 - 15

Noor brought 21 sheets of stickers. she gave 1/3 of a sheet to each of the 45 students at recess. she wants to give teachers 1 1/2 sheets each.

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .